Take this bark and call me in the morning
A factory in Two Harbors, Minn., is using a process developed at the University of Minnesota’s Natural Resources Research Institute in Duluth to extract chemicals from birch bark. The bark … Read more
A factory in Two Harbors, Minn., is using a process developed at the University of Minnesota’s Natural Resources Research Institute in Duluth to extract chemicals from birch bark. The bark … Read more